Solved papers for JEE Main & Advanced JEE Main Online Paper (Held on 9 April 2013)

done JEE Main Online Paper (Held on 9 April 2013) Total Questions - 3

• question_answer1)                 Rate of dehydration of alcohols follows the order:        JEE Main Online Paper (Held On 09 April 2013)         
  A)
                  \[{{2}^{0}}>{{1}^{0}}>{{\operatorname{CH}}_{3}}\operatorname{OH}>{{3}^{0}}\]                
  done clear
  B)
                  \[{{3}^{0}}>{{2}^{0}}>{{1}^{0}}{{\operatorname{CH}}_{3}}\operatorname{OH}\]                
  done clear
  C)
                  \[{{2}^{0}}>{{3}^{0}}>{{1}^{0}}{{\operatorname{CH}}_{3}}\operatorname{OH}\]                
  done clear
  D)
                  \[{{\operatorname{CH}}_{3}}\operatorname{OH}>{{1}^{0}}>{{2}^{0}}>{{3}^{0}}\]                
  done clear
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• question_answer2)                 Which of the following enzyme converts starch into maltose?                   JEE Main Online Paper (Held On 09 April 2013)
  A)
                  Diastase                 
  done clear
  B)
                  Maltase                
  done clear
  C)
                  Zymase                
  done clear
  D)
                  Invertase                
  done clear
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• question_answer3)                 Anether (A) \[{{\operatorname{C}}_{5}}{{\operatorname{H}}_{12}}\operatorname{O},\]when heated with excess of hot concentrated HI produced two alky halides which when treated with NaOH yielded compounds (B) and (C) Oxidation of (B) and (C) gave a propanone and an ethanoic acid respectively. The IUPAC name of the ether (A) is:           JEE Main Online Paper (Held On 09 April 2013)        
  A)
                  2-ethoxypropane                
  done clear
  B)
                  ethoxypropane                
  done clear
  C)
                  methoxybutane                
  done clear
  D)
                         2-methoxybutane                
  done clear
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